我是 Ubuntu 的新手。我在运行sudo apt-get update命令时遇到了一些问题。它显示了下面提到的错误。
我的系统配置：
命令：
sudo apt-get update
错误日志：
Err http://security.ubuntu.com precise-security Release.gpg
Something wicked happened resolving 'security.ubuntu.com:http' (-5 - No address associated with hostname)
Err http://in.archive.ubuntu.com precise Release.gpg
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
Err http://in.archive.ubuntu.com precise-updates Release.gpg
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - No address associated with hostname)
Ign http://security.ubuntu.com precise-security Release
Err http://in.archive.ubuntu.com precise-backports Release.gpg
Something wicked happened resolving 'in.archive.ubuntu.com:http' (-5 - …